package com.sky.aspect;


import com.sky.annotation.AutoFill;
import com.sky.constant.AutoFillConstant;
import com.sky.context.BaseContext;
import com.sky.enumeration.OperationType;
import lombok.extern.slf4j.Slf4j;
import org.aspectj.lang.JoinPoint;
import org.aspectj.lang.Signature;
import org.aspectj.lang.annotation.Aspect;
import org.aspectj.lang.annotation.Before;
import org.aspectj.lang.annotation.Pointcut;
import org.aspectj.lang.reflect.MethodSignature;
import org.springframework.stereotype.Component;

import java.lang.reflect.Method;
import java.time.LocalDateTime;

@Aspect
@Component
@Slf4j
public class AutoFillaspect {
    @Pointcut("execution(* com.sky.mapper.*.*(..))&& @annotation(com.sky.annotation.AutoFill)")
    public void autoFillPointCut(){

    }

    @Before("autoFillPointCut()")
    public void autoFill(JoinPoint joinPoint){
        log.info("面向切面编程");
        MethodSignature signature =(MethodSignature) joinPoint.getSignature();
        AutoFill autoFill = signature.getMethod().getAnnotation(AutoFill.class);
        OperationType operationType =autoFill.value();

        Object[] args = joinPoint.getArgs();
        Object entity = args[0];


        LocalDateTime now = LocalDateTime.now();
        Long currenId = BaseContext.getCurrentId();
        if(operationType == OperationType.INSERT){
            try {
                Method setCreateTime = entity.getClass().getDeclaredMethod(AutoFillConstant.SET_CREATE_TIME, LocalDateTime.class);
                Method setCreareUse = entity.getClass().getDeclaredMethod(AutoFillConstant.SET_CREATE_USER,Long.class);
                Method setUpdataTime = entity.getClass().getDeclaredMethod(AutoFillConstant.SET_UPDATE_TIME,LocalDateTime.class);
                Method setUpdataUse = entity.getClass().getDeclaredMethod(AutoFillConstant.SET_UPDATE_USER,Long.class);

                setCreateTime.invoke(entity,now);
                setCreareUse.invoke(entity,currenId);
                setUpdataTime.invoke(entity,now);
                setUpdataUse.invoke(entity,currenId);
            } catch (Exception e) {
                throw new RuntimeException(e);
            }

        }
        if(operationType == OperationType.UPDATE){
            try {
                Method setUpdataTime = entity.getClass().getDeclaredMethod(AutoFillConstant.SET_UPDATE_TIME,LocalDateTime.class);
                Method setUpdataUse = entity.getClass().getDeclaredMethod(AutoFillConstant.SET_UPDATE_USER,Long.class);
                setUpdataTime.invoke(entity,now);
                setUpdataUse.invoke(entity,currenId);
            } catch (Exception e) {
                throw new RuntimeException(e);
            }

        }
    }
}

















